Brock's Marshtomp #8 PSA 10: price & population
PSA 10
$300.00
Raw
$10.64
PSA 10 pop
18
Gem rate
48.6%
A PSA 10 Brock's Marshtomp #8 from Japanese Movie Commemoration VS Pack sells for $300.00 — a 2,720% premium over the $10.64 raw price. PSA has graded this card 37 times; 18 came back a 10 (48.6% gem rate), and 16 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $55.00. The jump from 9 to 10 is worth $245.00 — that spread, times your real odds of the 10, is what decides whether grading pays.
Prices from real completed sales, updated daily. Population data from PSA's public population report.
